# P Numbers vs EXATON Welding Guide

The clearest difference is update cadence: EXATON Welding Guide at every 3 months against P Numbers's every 39 months. EXATON Welding Guide also leads on rating (5.0 vs 4.8) and iOS requirement (10.0 vs 13.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EXATON Welding Guide holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

P Numbers ships an update every 39 months, EXATON Welding Guide every 3 months. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | P Numbers | EXATON Welding Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (5 ratings)](https://appshunter.io/ios/app/p-numbers/id911716649/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/exaton-welding-guide/id1076911301/reviews)** |
| Number of ratings | **5** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 13 MB | 50 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASMEIX CORPORATION](https://appshunter.io/developer/911716652) | [ESAB Group Inc](https://appshunter.io/developer/1053463271) |

## What reviewers say

### P Numbers

[App page](https://appshunter.io/ios/app/p-numbers/id911716649)

Quickly access weldability grouping numbers for welding procedures and performance qualifications. This app provides data from authoritative sources like ASME Section IX and AWS B2.1.

**Highlights:** Base metal weldability grouping lookup, Welding procedure qualification data, Performance qualification data, ASME Section IX Table QW/QB-422 data, AWS B2.1 Table C1 and C2 data, ISO/TR 20173 data

**Features:** macOS Compatibility

**In-app purchases:** none


### EXATON Welding Guide

[App page](https://appshunter.io/ios/app/exaton-welding-guide/id1076911301)

This welding handbook provides essential tools for welders and those interested in welding technology. It includes guides for selecting welding grades, calculating heat input, and evaluating weldability, along with tips for weld planning and details on a full product portfolio.

**Highlights:** Welding grade selection guide, Shielding gas assistance, Ferrite diagram calculator, Heat-input calculator, Weldability evaluation, Weld planning tips, Exaton product portfolio details

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is P Numbers free?

P Numbers is free to download, with no in-app purchases.

### Is EXATON Welding Guide free?

EXATON Welding Guide is free to download, with no in-app purchases.

### Which has better reviews, P Numbers or EXATON Welding Guide?

EXATON Welding Guide is rated higher. P Numbers averages 4.8 out of 5 from 5 ratings, while EXATON Welding Guide averages 5.0 from 3 ratings.

### Do P Numbers or EXATON Welding Guide have ads?

Neither P Numbers nor EXATON Welding Guide shows ads.

### Which is updated more often, P Numbers or EXATON Welding Guide?

P Numbers ships an update every 39 months, and EXATON Welding Guide every 3 months. Most recently, P Numbers was updated on October 2, 2026 and EXATON Welding Guide on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*